The rumors have been going around recently that Roger Rabbit 2, the sequel one of my favorite movies of all time, is getting closer to actually moving ahead. At this point, the original is 22 years old- and Robert Zemeckis is threatening to use his awful-looking mo-cap technology to render the humans. Personally, I don't care how realistic it looks- it takes away from a lot of the charm of the original, which was about 1940's ink-and-paint interacting in the real flesh-and-blood world. It captured my 7-year-old imagination like no other film I have ever seen, and I don't think digital characters could ever have the same effect.
That being said, this here is a CGI test done in 1998, which just leaked on Cartoon Brew.